Below is information regarding when a CIMS account will be expired.  Generally accounts have a grace period where their account will remain active after being enrolled at CIMS.  When accounts are coming up on expiration they will be sent an email notification with a chance to extend your account if applicable.

Account TypeGrace PeriodExpiration Dates
PhD student account ~1 year May 31st
Master student account ~6 months May 31st, Jan 15th
CS Minor account (i6) ~2 weeks May 31st, Jan 15th, Aug 31st
Class account ~2 weeks May 31st, Jan 15th, Aug 31st
Post Doc  -- Exact expiration date
Visitor  -- Exact expiration date

To renew an expiring account, submit the account renewal form

If you think you might be eligible for a different account type, see obtaining a Courant computer account.